:root {
  --body-background-color: #2F2F2F;
  --white-color: #fff;
  --minute-color: #3353aa;
  --second-color: #b63939;
  --clock-background-color: #2F2F2F;
  --clock-box-shadow: 0 -15px 15px rgba(255, 255, 255, 0.05),
                      inset 0 -15px 15px rgba(255, 255, 255, 0.05),
                      0 15px 15px rgba(0, 0, 0, 0.3),
                      inset 0 15px 15px rgba(0, 0, 0, 0.3);
  --clock-box-border: 20px solid var(--clock-background-color);
  --toggle-background-color: linear-gradient(to right bottom, #222, #111);
  --ball-background-color: linear-gradient(to bottom, #444, #222);
}

body.dark {
  --body-background-color: #68A3FF;
  --white-color: #464646;
  --minute-color: #b63939;
  --second-color: #3353aa;
  --clock-background-color: #fff;
  --clock-box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.1),
                      0 20px 20px rgba(0, 0, 0, 0.2),
                      0 0 0 4px rgba(255, 255, 255, 1);
  --clock-box-border: 20px solid var(--clock-background-color);
  --toggle-background-color: linear-gradient(to right bottom, #f2f2f2, #c4c4c4);
  --ball-background-color: linear-gradient(to bottom, #fff, #f2f2f2);
}

body {
  background-color: var(--body-background-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  margin: 0;
  padding: 0;
  height: 100vh;
  transition: 0.3s;
  font-family: "Poppins", "Arial", sans-serif;
}

.dark-button {
  background-color: transparent;
  border: none;
  margin-top: -60px;
}

.checkbox {
  opacity: 0;
}

.label {
  width: 40px;
  height: 16px;
  background-image: var(--toggle-background-color);
  display: flex;
  border-radius:50px;
  align-items: center;
  justify-content: space-between;
  padding: 5px;
  position: relative;
  transform: scale(1.5);
}

.ball {
  width: 20px;
  height: 20px;
  background-color: white;
  position: absolute;
  top: 3px;
  left: 3px;
  cursor: pointer;
  border-radius: 50%;
  background-image: var(--ball-background-color);
  transition: transform 0.2s linear;
}

.checkbox:checked + .label .ball{
  transform: translateX(24px);
}

#clockContainer {
  position: relative;
  height: 300px;
  width: 300px;
  background-color: var(--clock-background-color);
  border-radius: 50%;
  border: var(--clock-box-border);
  box-shadow: var(--clock-box-shadow);
  background-image: url("../images/clock.png");
  background-size: cover;
  transition: 0.3s;
  margin: 30px 0;
  z-index: -5;
}

#clockContainer::before {
  content: "";
  width: 15px;
  height: 15px;
  background-color: #fff;
  border-radius: 50%;
}

#hour,
#minute,
#second {
  position: absolute;
  border-radius: 10px;
  left: 50%;
  transform-origin: bottom;
  transition: 0.3s;
}

.clock-center {
  width: 15px;
  height: 15px;
  background-color: var(--white-color);
  top: 50%;
  position: absolute;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  transition: 0.3s;
  left: 50%;
}

#hour {
  width: 5px;
  height: 70px;
  top: 80px;
  z-index: -3;
  background-color: var(--white-color);
}

#minute {
  width: 3px;
  height: 90px;
  top: 60px;
  background-color: var(--minute-color);
  z-index: -2;
}

#second {
  width: 2px;
  top: 40px;
  height: 110px;
  z-index: -1;
  background-color: var(--second-color);
}

.clock {
  display: flex;
  align-items: center;
}

.hour {
  margin: 0;
  width: 70px;
  height: 70px;
  background-image: var(--toggle-background-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  color: var(--white-color);
  font-size: 24px;
  justify-content: center;
}

.hour:not(:last-child) {
  margin-right: 10px;
}

.clock span {
  margin-right: 10px;
  font-size: 24px;
  font-weight: bold;
  color: var(--white-color);
}